IMO, look around and figure oyut what you like, then either get what you like or some 100% hets that will produce what you like. Less than 100% hets are great if you're on a budget and looking to get several hoping for more than one to prove out.
Personally, I like em all and have recently acquired 6 that will allow me to produce Snows, sunglows and a bunch of mostly visible hets along with some not visibly detectable hets....I know, I just suggested to go with 100% hets.
For example I have:
Albino het for anery along with a anery her for albino = snow, albino het for anery, anery het for albino and double hets.
Albino (het stripe line) along with a Hypo het albino = sunglows, Hypo het albino, albino and hypos
Pastel Salmon along with hypo = more hypo's (not sure of exact outcome)
Lastly, don't have yet but getting a female ghost (hypo/anery)
All these can be mix/matched for other outcomes



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Thanks,
Dave "Rainbows-R-Us"
0.1 Wife
0.2 kids
4.12 Brazilian Rainbow Boa
1.1 Ball python
0.1 BCI "Elvira" normal from 1989
1.0 BCI albino / het-anery
0.1 BCI Hypo / het-albino
0.1 BCI Anery / het-albino
0.1 BCI Hypo (possible super)
lots.lots.lots feeder mice and rats 